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DE726984C - Compressed air brake with contact and locking piston and main and secondary control valve - Google Patents

Compressed air brake with contact and locking piston and main and secondary control valve

Info

Publication number
DE726984C
DE726984C DEK162757D DEK0162757D DE726984C DE 726984 C DE726984 C DE 726984C DE K162757 D DEK162757 D DE K162757D DE K0162757 D DEK0162757 D DE K0162757D DE 726984 C DE726984 C DE 726984C
Authority
DE
Germany
Prior art keywords
control valve
compressed air
main
contact
secondary control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEK162757D
Other languages
German (de)
Inventor
Wilhelm Bruhn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr Bremse AG filed Critical Knorr Bremse AG
Priority to DEK162757D priority Critical patent/DE726984C/en
Application granted granted Critical
Publication of DE726984C publication Critical patent/DE726984C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02Application and release valves
    • B60T15/36Other control devices or valves characterised by definite functions
    • B60T15/38Other control devices or valves characterised by definite functions for quick take-up and heavy braking, e.g. with auxiliary reservoir for taking-up slack
    • B60T15/40Other control devices or valves characterised by definite functions for quick take-up and heavy braking, e.g. with auxiliary reservoir for taking-up slack with separate take-up and applying cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Description

Druckluftbremse mit Anlege- und Festbremskolben und Haupt- und Nebensteuerventil Bei Druckluftbremsen mit Anlege- und Festbremskolben kommt es vor allem darauf an, den kleinen Anlegekolben früher als den großen Festbremskolben mit Druckluft zu beschicken. Zu diesem Zwecke wurde schon vorgeschlagen, die beim Bremsen durch die Ühertragungskammer des Hauptsteuerventils aufgenommene Luft auf ein Relaisventil einwirken. zu lassen, das dann die Verbindung des Vorratsluftb:ehälters mit dem Zylinder des Anlegekolbens herstellt. Danach wird im Zusammenwirken von Haupt- und Nebensteuerventil der Zylinder des _ Festbremskolbens mit Druckluft beschickt.Compressed air brake with contact and locking piston and main and secondary control valve In the case of compressed air brakes with contact and locking pistons, the most important thing is the small contact piston is closed earlier than the large brake piston with compressed air charge. For this purpose it has already been proposed that when braking by the Transfer chamber of the main control valve received air to a relay valve act. to let the connection of the supply air tank with the Manufactures cylinder of the application piston. Then in the interaction of main and Auxiliary control valve of the cylinder of the fixed brake piston charged with compressed air.

Das besondere Relaisventil einzusparen, ist der Zweck der Erfindung, der durch einige Änderungen im Hauptsteuerventil erreicht -wird.Saving the special relay valve is the purpose of the invention, which is achieved by making some changes in the main control valve.

Die Abb. i und 2 zeigen ein Lösungsbeispiel für die bekannte Hildebrand-Knorr-Bremse mit Haupt- und Nebensteuerventil.Figs. I and 2 show an example of a solution for the well-known Hildebrand-Knorr-Bremse with main and secondary control valve.

Die Abb.3 und q. zeigen eine Lösung für die gleiche Bremse, bei der jedoch das Hauptsteuerventil noch durch den Fortfall des Mindestdruckventils vereinfacht wurde.Fig.3 and q. show a solution for the same brake in which however, the main control valve is still simplified by eliminating the minimum pressure valve became.

In der Lösestellung (Abb. i) strömt Druckluft aus der Bremsleitung L über das Rückschlagventil 9 in den Vorratsluftb.ehälter R und über den Raum Bi, und den, Kanal b in den Hilfsluftbehälter B. Der Zylinder C des Festbremskolbens wird über den Kanal c, die Aussparung tt im Schieber 12 des Nebensteuerventils, Kanal o1 und g entlüftet. Der Zylinder CA des Anlegekolbens wird über den gemäß der Erfindung im Schieberrost des Hauptsteuerventils angeordneten zusätzlichen Kanal z, b" c, n, o1 und g entlüftet.In the release position (Fig. I), compressed air flows from the brake line L via the non-return valve 9 into the storage air tank R and via the space Bi and channel b into the auxiliary air tank B. The cylinder C of the brake piston is activated via channel c , the recess tt in the slide 12 of the secondary control valve, channels o1 and g are vented. The cylinder CA of the application piston is vented via the additional duct z, b "c, n, o1 and g arranged according to the invention in the slide grate of the main control valve.

Beim Bremsen (Abb.2) wird der mit dem Vorratsluftbe:hälter R verbundene Kanal r zuerst mit dem zusätzlichen Kanal z verbunden, über den das Druckmittel ungedrosselt in den Zylinder CA des Anlegekolbens eintritt, so daß die Bremsklötze schnellstens zum Anliegen kommen, Erst wenn der Kolben 1 weiter nach links geht, wird auch der zum Bremszylinder C führende Kanal cl mit r verbunden. Im übrigen erfolgt die Füllung des Bremszylinders C in bekannter Weise: Nachdem der Druck im Hilfsluftbehälter B durch Abströmen von Luft über b, BI" C., b, c in den Bremszylinder C um einen gewissen Betrag gefallen ist, schiebt der auf seiner Oberseite vom Hilfsbehälterdruck belastete Kolben im Nebensteuerventil den Schieber 12 nach oben, so daß unter Absperrung der Verbindung c, it, o1 die Verbindung r, tzl, c. hergestellt wird und die restliche Beschickung des Bremszylinders C, da ja das Minde.stdruckventil 5 bei einem Bremszylinderdruck von o,6 at schließt, nur noch über die Drosselbohrung b, erfolgt.When braking (Fig. 2), the channel r connected to the storage air tank R is first connected to the additional channel z, through which the pressure medium enters the cylinder CA of the application piston in an unthrottled manner, so that the brake pads come to rest as quickly as possible, only when As the piston 1 moves further to the left, the channel cl leading to the brake cylinder C is also connected to r. In addition, the filling of the brake cylinder C takes place in a known manner: After the pressure in the auxiliary air reservoir B has fallen by a certain amount due to air flowing out through b, BI "C., b, c into the brake cylinder C, it pushes on its upper side from Auxiliary tank pressure loaded the piston in the auxiliary control valve upwards, so that the connection r, tzl, c. Is established while the connection c, it, o1 is shut off and the rest of the charge to the brake cylinder C, since the Minde.stdruckventil 5 at a brake cylinder pressure from o, 6 at closes, only via the throttle bore b, takes place.

In den Abb.3 und q. ist im Hauptsteuerventil an Stelle des Mindestdruckventils 5 ein Rückschlagventil M vorgesehen. Die Entlüftung des Zylinders CA dies Anlegekolbens erfolgt wieder über den hier etwas anders geführten zusätzlichen Kanal z, dann über M, c, die Aussparung rt im Schieber 12 des Nebensteuerventils, o1 und g.In fig.3 and q. a check valve M is provided in the main control valve instead of the minimum pressure valve 5. The cylinder CA of this application piston is again vented via the additional channel z, which is guided somewhat differently here, then via M, c, the recess rt in the slide 12 of the auxiliary control valve, o1 and g.

Beim übergang in die Bremsstellung (Abb. q.) ist die -Füllung des Zylinders CA des Anlegekolbens aus dem Vorratsluftbehälter R über die ungedrosselten Wege r, z wieder schneller vollzogen als die Füllung des Bremszylinders C aus dem Hilfsluftbehälter B über b, BI" b, und anschließend aus dem Behälter R über r, itl im Nebensteuerventil, c., b, und c.During the transition to the braking position (Fig. Q.), The filling of the cylinder CA of the application piston from the supply air reservoir R via the unthrottled paths r, z is completed faster than the filling of the brake cylinder C from the auxiliary air reservoir B via b, BI "b , and then from the container R via r, itl in the auxiliary control valve, c., b, and c.

Claims (1)

PATENTANSPRUCH: Druckluftbremse mit Anlege- und Festbremskolben und Haupt- und Nebensteuerventil, dadurch gekennzeichnet, daß über einen zusätzlichen Kanal (z) im Schieberrost des Hauptsteuerventils der Zylinder (CA) des Anlegekolbens früher als der Zylinder (C) des Festbremskolbens mit Druckluft beschickt wird.PATENT CLAIM: Compressed air brake with application and locking piston and main and secondary control valve, characterized in that the cylinder (CA) of the application piston is supplied with compressed air earlier than the cylinder (C) of the locking piston via an additional channel (z) in the slide grate of the main control valve.
DEK162757D 1940-09-15 1940-09-15 Compressed air brake with contact and locking piston and main and secondary control valve Expired DE726984C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK162757D DE726984C (en) 1940-09-15 1940-09-15 Compressed air brake with contact and locking piston and main and secondary control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK162757D DE726984C (en) 1940-09-15 1940-09-15 Compressed air brake with contact and locking piston and main and secondary control valve

Publications (1)

Publication Number Publication Date
DE726984C true DE726984C (en) 1942-10-23

Family

ID=7254436

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK162757D Expired DE726984C (en) 1940-09-15 1940-09-15 Compressed air brake with contact and locking piston and main and secondary control valve

Country Status (1)

Country Link
DE (1) DE726984C (en)

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